Improvement in cooking-stoves



W. S. DEISHER.

Cooking Stove.

Patented July 7, 1863;

I Wain/e666; I

UNITED STATES WILLIAM S. DEISHER, OF HAMBURG, PENNSYLVANIA.

IMPROVEMENT IN COOKlNG-STOVES.

Specification forming part of Letters Patent No. 39,127, dated July 7, 1863.

To all whom it may concern Be it known that I, WILLIAM S. DEISHER,

of Hamburg, in the county of Berks and State of Pennsylvania, have invented a new and Improved Air-Heatin g and Cooking Stove Oombined; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, making part of this specification, in which- Figure 1 is a perspective view of a stove embodying my invention. Fig. 2 is a see tional elevation of the same.

Similar letters of reference indicate corre sponding parts in the two figures.

This invention consists in a novel arrangement of passages or flues in a cooking-stove, whereby, without detracting in the least from the efficiency of the stove for cooking purposes, a large amount of heating-surface is obtained, which may be used for heating air for warming the building, as will be hereinafter fully explained.

To enable others skilled in the art to which my invention appertains to fully understand and construct the same, I will proceed to describe its construction and operation.

The accompanying drawings represent a cooking-stove, which in external form is similar to many now in common use. This stove, on each side of the fire-place, is constructed with an inner wall or plate, forming a flue, H, which has an opening, H, in front, closable by a door, G, also an aperture, t, in the side, closable by a swinging plate or valve, 1'. The flues H at their rear extremities open into a space, J, between the fire-back B and ovenplate 0, and this space forms the mouth of a flue, L, which extends across the top of the oven to the rear end or back side of the stove. The flue L communicates with the oven 0 and exit smoke-pipe E through apertures a b, closable by valves M and N, respectively.

S is a valve covering an opening, 8, in the front end of the oven. Between the bottom of the oven and the bed-plate of the stove are formed by partitions three lines, f g h, which extend in a longitudinal direction from the front to the back end of the stove, where they unite, respectively, with vertical flues c d e, which extend to the top of the stove. The flues f g h at their forward end communicate with each other through openings made in the partitions and" with the external air through an oblong rectangular opening, 0, which is closable by a slide or damper, P. The central flue, L, is provided with a damper, R, which is operated from one side of the stove by means of a rod, j, in the usual manner. When the damper R is closed, the draft of the stove may be increased by opening the valves 1? and N. The former admits fresh air, which, becoming rarefied in passing through the flue, acquires momentum, and this, as the air escapes through the opening into the exit-pipe E, serves to effect the desired result.

To obtain a great amount of heat for cocking purposes, particularly baking, the openings H and iin the air-heating flues H should be closed and the damper R shut. The smoke and unconsumed gases of combustion from the fire then, instead of. passing directly into the chimney, pass down the outside vertical flues c e into the dues f h under the oven to the front end of the same, thence back through the central flue, g, to the rear end of the same, then upward through the exit-pipe E into the stove-pipe, whence it is conducted into the chimney.

When it is desired to use the stove for warming the different apartments of the building, the doors G should be thrown open, so as to permit fresh air from the room to enter the flues H, where, coming in contact with the heated surfaces of the fire-box and becoming heated, it passes behind the fire-back B, gradually increasing in temperature. From the space J it enters the flue L and passes to the rear end thereof into suitable pipes, (not shown in the drawings,) through which it is conducted to the different apartments of the building to be warmed.

When the stove is not being used for baking purposes, the amount of heated air may be materially augmented without increasing the fire or fuel by shifting the valves S and M, so as to admit into the oven through the opening 8 fresh air, which, in passing through the oven and becoming heated, escapes through the opening into the flue. L, where it mingles with the air heated in the fines H and passes off with it.

With the damper It open, and the opening in the fines H Lfg h closed, the stove may be used for cooking purposes, precisely like the common cooking-stove.

The above-described change in the internal construction of the stove, and which constitutes my invention, adds but little to the original cost and greatly increases its efficiency for for household purposes.

Havingthus described my invention, what I claim as new, and desire to secure by Letters Patent, is-- 1. The fines H H, provided with openings H and i, in combination with the air-heating space J and flue L, when arranged in the manner and for the purposes specified.

2. The combination of the fines H and L with the openings 1) and s, Valves M S, and oven 0, when arranged in the manner and for the purpose specified.

WM. S. DEISHER.

Witnesses:

J. FRANKLIN REIGART, JOHN S. HOLLINGSHEAD. 

